Перегляд по темі "coal"
Зараз показуються 1-10 з 24
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Assessment of coal quality on the site “Uspenivska No 2” in Western Donbas based on the statistical analysis of its chemical and technological properties
(National Mining University, 2016-12-30)Purpose. To conduct a comprehensive assessment of the coal seams’ quality on the site “Uspenivska No 2” in Lozivskyi coal-bearing area of the Western Donbas industrial district; establish their grade composition according ... -
Basic concept of mining technology
(National Mining University, 2014)The materials concerning global importance of mineral resources in the society life, their amount, origin, classification of deposits and economical aspects are presented. Opening and development technologies, mining ... -
EVOLUTION OF THE MICROSTRUCTURE OF MINERAL SYSTEMS IN ELECTRIC AND MAGNETIC FIELDS OF WEAK INTENSITY
(2018)Study of phase and structural effects in solid mineral systems caused by the development of spin-selective chemical reactions initiated by the action of a weak magnetic field. -
Imaging and chemical methods for preventing the risk of coal self-ignition
(Журфонд, 2020)Important information for drawing up the risk scenario and the plan for preventing spontaneous ombustion in coal mines are provided by knowledge on the coal’s self-ignition tendency gained from laboratory determinations ... -
On the possibilities to apply indices of industrial coal-rank classification to determine hazardous characteristics of workable beds
(Dnipro University of Technology, 2021-06-30)Purpose is to identify behaviour of the graded indices as well as their correspondence to grades, groups, and subgroups of similar coal metamorphic degrees to determine hazardous characteristics of workable beds while ... -
Physical and mathematical modelling of the conditions of coal and gas outbursts
(National Mining University, 2017-09-30)Purpose. Experimental study and theoretical modeling of conditions initiating destructive processes and development of gas generation in coals. Methods. Analysis, generalization and statistical processing of experimental ... -
Phytoremediation technology for coal dumps
(Видавництво НТУ «ДП», 2020)To study the physical-and-chemical parameters of soil substrates used for coal dump reclamation in Western Donbas, in particular black soil and red-brown clay; to investigate the Bioconcentration Factors, Translocation ... -
Preliminary assessment of the content of valuable components in coal mine waste dumps
(Видавництво НТУ «ДП», 2020)Study of the mineralogical and chemical composition of waste rocks from the Western Donbass coal mines dumps to establish the presence of valuable components and their subsequent industrial development. The present work ... -
Research into stress-strain state of the rock mass condition in the process of the operation of double-unit longwalls
(National Mining University, 2020-06-30)Purpose. To substantiate changes in stress-strain state of rock mass in the process of long-pillar mining with the help of double-unit longwalls while evaluating stress of a mine field in terms of Lvivvuhillia SE mine. Methods. ... -
Risk assessment of radionuclide contamination spreading while flooding coal mined-out rocks
(National Mining University, 2020-12-30)Purpose. To investigate pathways and concentrations of the most dangerous radionuclides entering the surface and groundwater in terms of hydrodynamic situation re-establishment in the zone of radiation-hazardous mine field ...